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Finding the Fourth Proportional to 355,231.16, 490,213.30 and 194,082.76

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Solution

The fourth proportional to 355,231.16, 490,213.30 and 194,082.76 is: 267,831.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,231.16 : 490,213.30 = 194,082.76 : x
  2. Step 2: Convert to fraction form
    355,231.16/490,213.30 = 194,082.76/x
  3. Step 3: Cross multiply
    355,231.16x = 490,213.30 × 194,082.76
  4. Step 4: Simplify right side
    355,231.16x = 95,141,950,252.71
  5. Step 5: Solve for x
    x = 95,141,950,252.71/355,231.16
  6. Step 6: Final answer
    x = 267,831.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.